User Interface

To change the default color of a read-only entry-field you can apply the background-color and foreground-color properties or the color property to combine custom background and foreground colors in the entry-field control's properties.  To... Read More

This can be solved by adding the "No-Msg-Before-Navigate" style to your web-browser control, or iscobol.gui.webbrowser.no_msg_before_navigate=true in your configuration file. This style prevents the generation of the MSG-BEFORE-NAVIGATE event and it... Read More

a { text-decoration: none; color: #464feb; } tr th, tr td { border: 1px solid #e6e6e6; } tr th { background-color: #f5f5f5; } From version 2019 R1 onward, you can use a compiler configuration variable to insert COBOL code that sets... Read More

Sometimes you may want to have some special routines to apply similar changes to GUI controls of one or more screen programs.  You can do this by passing the handle of the control, defined in the calling program, to a called program which would... Read More

Use the -cnlz compile option, implemented in version 2015R1. -cnlz Leading zeros are shown when numeric data items are displayed on a character based screen.   Read More

You can empty the grid of any data except for column headers through the action property, like this: modify grid-1 action = ACTION-CURRENT-PAGE Then generate the grid's PAGED-NEXT event. If you position a data file using the START statement... Read More

The display window syntax was extended in version 2018R1 to add the display of a notification window.  A notification window is an undecorated window notifying the user about events that will or are happening in your program.  This window doesn&... Read More

A default screen in isCOBOL uses SanSerif 9 pt bold. If you’re using the default font for your character screen and you want to change it, try this method. The attached program MAIN.cbl displays a screen, but doesn’t define the main... Read More

When the allow-container style is set, a tab control becomes a container control.    03 screen1-tc-1 tab-control       tab-to-add ("Page1", "Page2")       allow-container. By making the tab control a container, you remove the need to... Read More

There are some user-friendly options that are often displayed on the status bar at the bottom of the screen. These include whether the caps lock, num lock, and insert mode keys are on or off, as well as the current date and time. isCOBOL's... Read More